Paper-bag machine.



' No. 687,679. Patented Nov; 26, l90l.

' L. P. EISENBEIS.

PAPER BAG MACHINE. (Application filed Feb. 14, 1901;

(No Model.)

ll Sheets-Sheet l.

:WITNESSESI Patented Nov. 26, l90l.

L. P. EIS ENBEIS. PAPER BAG MACHINE.

(Application filed Feb. 14, 1901.)

ll Sheets-Shoat 2.

(No Model.)

NWNM

wum umov, wasmm, row, a. c.

Patented Nov. 26, ISM.

L. EISENBEIS.

PAPER BAG MACHINE.

(Application filed Feb. 14, 1901.)

Sheets-Sheet 3.

(lo Modal.)

llllll JNVEN OF ETERS 60.. sworn unw m w 2 V o N d t n e L]- a P m 8mm mu A NM% E F sa EM 0 Bu Em .PH AM m 9 7 7 no 6 0 N (No Illqdel.)

ll Sheets-Sheet 4.

No.. 687,679.- Patented Nov. 26, l90l. L. P. EISENBEIS.

PAPER BAG MACHINE.

(Application filed Feb. 14, 1901.

(No Model.) sheets-sheet 5.

N g I N 1 g R &

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M nlassEsg "'QVENTOK I Patented Nov. 26, i901.

L. P. EISENBEIS.

PAPER BAG MACHINE.

(Appliction filed Feb. 14, 1901.)

ll Sheets-Sheet 6.

(No Model.)

INVENTOR- Ma-ssasm Patented Nov. 26, MM.

L. P, EISENBEIS. PAPER BAG MACHINE.

A li ation filed. Feb. 14, 1901.)

ll Sheets-Sheet 9.

(No Model.)

'WITNESES' I I I No. 687,679. Patented Nov. 26, I90l. I

L. P. S NBEIS.

PAPER MACHINE.

(Application filed Feb. 14, 1901.

(No Model.)

'M/ITNESSES- Patented Nov. 26, I90]. L. P. EISENBEIS. PAPER BAG MACHINE.

(Application filed Feb 14, 1901.) I

' ll Sheets-Sheet II.

- (No Model.)

M w w w w U ITED STATES PATENT FFICE.

LOUIS P. EISENBEIS, OF OTTUMWA, IOWA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE UNION PAPER BAG MACHINE COMPANY, OF PHILADEL- PHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA;

PAPER-BAG MACHINE.

SPECIFICATION formingpart of Letters 1 ate'nt a... 682,679, dated November 26, 1901. Application filed February 14, 1901. Serial No. 47,307. (No model.)

To all whom it may concern.-

Be it known that I, LOUIS P. EIsnNBEIs, a citizen of the United States of America, residing in Ottumwa, in the county of Wapello 5 and State of Iowa, have invented certain new and useful Improvements in Paper-Bag Machines, of which the following is atrue and exact description, reference being bad to the accompanying drawings, whichjform apart thereof.

' My invention relates to paper bag machines,

and particularly to that portion of such machines which has for its function the conversion of bellows-folded blanks into square-botr5. tomed bags, the leading features of my invention relating to the mechanism for folding the end of the paper tube into what is known as the diamond fold, though my invention comprises also improvements in the mechanism for severing the blanks from bellows-foldedtubes and in the mechanism acting upon the diamond-folded blank tocom plete the formation of the bag.

The nature of my improvements will be best understood as described in connection with the drawings in which they are illustrated, and in which- Figure 1 is a plan view of a portion of a bag-machine embodying my improvements.

0 Fig. 2 is a side elevation of the same portion of the machine; Fig. 3, a similar side elevation taken from the other side; Fig. 4, a sectional side elevation taken as on the sectionline 4 4 of Fig. 1; Fig. 5, a cross-sectional 5 view taken as on the section-line 5 5 of Fig. 2; Fig. 6, a cross-sectional view taken as on the section-line 6 6 of Fig. 2; Fig. 7, a crosssectional view taken as on the section-line 7 7 of Fig. 2; Fig. 8, a cross-sectional view taken as on the line 8 8 of Fig.2. Fig. 9 is a face view of the rollers and supported mechanism for forming thediamond fold, with the cams surrounding the shafts of the rollers illustrated in cross-section. Fig. 10 is a crosssectional view of the rolls, taken as on the line 10 10 of Fig. 9. Fig. 11 is a perspective view of one of the rolls with the cams acting in connection therewith. Fig. 12 is a perspective View of one of the plates K, connected with the rolls'J. Fig. 13 is'aperspective view of one of the fingers and actuating connections operating in connection with the plate K. Fig. 14 is a perspective View of one of the wing-folders acting in connection with the plate K. Figs. 15,16, and 17 are perspective views showing the action of'the plates K, fingers Z, and wing=folders M in forming the diamond fold at the end of a blank. Fig. 18 is a perspective view showing the action of theplates K in connection with the withdraw- 6o ing-roller 0. Fig. 19 is a plan view of the withdrawing-roller O and its connections; Fig. 20, an end view of the said roller and its connections. Fig. 21 is a plan view showing the'upper paste-roll; Fig. 22, an end View of the paste-roller and its coacting lower roller. Fig. 23 is a perspective view of the pasteroller and its coacting roll, showing their operation in connection with a blank. Fig. 24

is an elevation of the creasing-rolls and their 7 connections; Fig. 25, a cross-section through said rolls on the line 25 25 of Fig. 24. Fig.

26 is a perspective view of one of the creasing-plates and its connections. Figs. 27 and 28 are sectional views of the creasing-roll, showing their progressive action on the diamond-folded blank. Fig. 29 is a sectional View showing the action of the final foldingrolls and folding-blade on the creased blank. Fig. 30 is a perspective View of the blank as it leaves the creasing-rolls, and Fig. 31 is a perspective view showing the bottom of the blank completed.

A A indicate the framing supporting the operative parts of the machine D (see Fig. 4,) indicating the projecting end of a former, (not shown,) upon which a web of paper is folded into a bellows-folded tube. The extreme end of this project-ion of the former is formed into a knife-edge, generally serrated, 0 and above and slightly back ofthis knife-edge is situated the stationary knife 1 under which the tube passes, said stationary knifeblade I being supported on brackets, (indicated at i 1 F indicates a revolving striker, which, moving upward, acts to sever a blank from the tube, cutting the lower ply of the paper on the end of the former D and the upper plies on the edge of tho knifel. The striker 10o F revolves with the shaft indicated at F, said shaft receiving its motion through suitable connections, a part of which is indicated in Figs. 1 and 2, F indicating one edge of a gear-wheel through which motion is imparted to a shaft, (not shown,) on which shaft is fastened the wheel indicated at F and by means of which (by means not shown) the shaft F is rotated.

H is a stud secured in the frame of the machine and having journaled upon it the loose pulley H and the fast pulley H to which fast pulley is attached the gear-wheel H ,which engages with and drives the gear-wheel H secured to the transverse shaft H On this shaft are secured the gear-wheels H and H and also the lower presser-roller 1 the shaft of the upper presser-roller I being engaged with the gear-wheel H through a gear-wheel h As indicated in Fig. 2, the gear-wheel H is also in engagement with and drives the gearwheel H which in turn drives the gear-wheel H, secured to the shaft 11 of the feed-roll I and driving through a gear-wheel h" the shaft t" of the upper feed-roll I. As shown, the shaft I has also secured to it the gear-wheel H which drives the gear-wheel indicated at F Returning to the main transverse shaft H the gear H secured to it, drives through an intermediate "gear-wheel II the gear wheel H secured to the shaft j of the roller J, said gear-wheel H actuating through the gear h the shaftj of the roller J and also actuating the intermediate gearwheel H which in turn communicatesmotion to the shaft h, having attached to it the gear-wheel H which engages and drives the gear-wheel 7L attached to the shaft 0, carrying the roller 0, said shaft having also attached to it the gears H H which through gears W 71" actuate the shafts O 0 carrying at their ends (see Fig. 7) the rollers O 0 The gear-wheel H actuates through an intermediate gear-wheel H the gearwheel H secured on the shaft 19 of the roll P and actuating through a gear-wheel h the shaft 19 of the paste-roller P. The said gearwheel H also actuates the intermediate gear H which in turn actuates the gear-wheel H secured on the shaft q of the creasingroller Q, on which shaft is also secured the gear-wheel H driving, through a gear-wheel 71 the shaft q of the creasing-rollerQ'. The gear-wheel H also actuates the intermediate gear H which through the gear-wheel H actuates the shaft 7' of the roller B, said gearwheel H actuating the gear-wheel H secured on the shaft r of the roller R.

The paper is fed forward into the part of the machine shown by the feed-rollers I I, the end of the tube passing forward around the end of the former D and under the knifeblade I and being directed by the stationary plate G supported on the bracket 9 into the grip of the feed-rollers I 1 G indicating an oscillating directing-blade supported on the end of a lever-arm G", pivoted at G, Fig. 1,

and connected by mechanism, (not shown,) so that the blade G moves up to clear the end of anadvaneing blank and down to push the upper part of the blank into alinement to be engaged by the feed-rolls I and 1 The revolving striker- F is timed to act upon the tube after a sufficient portion of it has been fed forward on the endof the former to make a blank and while the tube'is held by both of the feed-rolls I I and I 1 From the feedrolls 1 I the blank is fed between the rolls J J, the construction of which and their coacting appliances I will now describe.

The rolls or cylinders J and J are centrally recessed, as indicated at J J and preferably also similarly recessed on the opposite sides, as indicated at J J J J (see Fig. 11) are openings formed in the bottom of the recesses J or J in which are situated springs and through which extend presser-pins, (indicated at k which are thrust upward by the springs in the openings J but capable under pressure of moving down into said openings.

J J are longitudinal openings extending from the side walls of the recesses J or J through the rollers J and J to give passage to the sliding rods L J J are similar openings extending through the rollers from. the side walls of the recesses J or J to give passage to the rods M. It is only necessary that one of the eoacting recesses J J or J J should be provided with this passage, for reasons which will be understood later on.

K K are plates secured against one wallof the recesses J J or J J so as to be capable of an in-and-out sliding motion thereon. As shown, the plates are formed with a slot K, through which extends a pin is, limiting the sliding motion of the plate, the inner edge of the plate having also a slot K through which extends a pin 70 which serves to guide the plate. The inner edges of the plates K also, as shown, rest in contact with the spring-supported pin indicated at 70 which normally presses the plate out to the position indicated in Fig. 11.

K K indicate hinge connections on the lateral sides of the plates K K,and K K laterallyextending arms from the outer edge of the plates K K, on the ends of which arms are pivoted the fingers to be described.

It will be understood that the recesses J J and also the recesses J J are so situated as to register with each other, as indicated, for instance, in Figs. 9 and 10, as the rolls revolve, and that as the projecting edges of the plates K come together, which they do first in the position shown in Fig. 15, the plates will be moved inward until they assume the position, for instance, in Figs. 16 and 17, while the further motion of the rollers J and J permits the plates K to move outward without losing contact with each other for a certain distance, as is indicated, for instance, in Fig. 18.

L L indicate fingers, or rather finger-supporting devices, pivotally connected with the arms K of the plates K and supporting at their outer ends the fingers proper, (indicated at Z.) The finger-supports L are actuated through the pin-connected links L by the sliding rods L having at their outer ends cam-rollers, as indicated at Z said camrollers running in contact with the stationary annular cams N N, as shown in Figs. 9 and 11. The cam-rolls Z are held in contact with the cams N, as by the action of a spring Z", situated inpassages J formed in the rolls J and J, as is clearly shown in Fig. 11.

Pivoted on the hinge-eyes K of the plates K are the wing-folders M M, one pair of which (the upper one, as indicated in Fig. 9) have extending from them lever-arms connected to the sliding rods M which by means of cam-rollers m are actuated by the annular cams indicated at N. These directlyactuated wing-folders M have, as shown, projecting plates m extending from them and lapping the lower set of wing-folders M, so that when the upper set of wing-folders move forward and downward they carry the lower set with them, the lower set being returned to upright position by the action of springs, as indicated at M, Fig. 9, and normally resting in contact with the studs indicated at M The operation of the rollers J J and their attachments upon the blank is clearly indicated in Figs. 15 to 18. The advancing end of the blank is grasped between the front edges of the plate K, as shown in Fig. 15, and immediately afterward the fingers Z Z are thrown into the tuck, as also indicated in the said figure, and then as the rolls revolve further the plates assume a parallel position, as shown in Fig. 16, and the fingers Z are moved outward, spreading the end of the blank into a box-like form of rectangular outline. This box is then folded down into the diamond fold by the action of the wing-folders M M, as shown in Fig. 17, after which the wingfolders M and fingers Z are retracted and the blank fed forward,still in the grip of the plates K K, as shown in Fig. 18, by mechanism which en gages the blanks and feeds them forward into further operative parts of the machine. In the construction shown and described the rollers J J are adapted to act on two blanks during each complete revolution; but of course the principle remains the same Whether they act on one or more blanks for each revolution, and obviously also the rollers J J are merely used by me as convenient devices for supporting the plates K K and the coacting fingers Z and folders M, which devices are the real operative features of this part of my invention and are therefore claimed entirely apart from the particular separating and carrying mechanism in connection with which they are used.

0 is a roll situated immediately in advance of the rolls J J and serving, in connection with its coactin g devices, to seize the diamond folded blanks as they are delivered from the plates K K and feed them forward through the machine. Situated below the roll 0 are the two rolls 0 O rotated at the same peripheral speed by means of the driving mechanism already described, but leaving a clear space beneath the center of the roll 0.

0 (see Figs. 19 and 20) is a transverse perforation through the roll 0, serving as a bearing for the shaft 0 and centrally opening through the face of the roll, as indicated at O The shaft 0 has attached to it the jaw 0 which extends through the opening 0 as shown, and the said shaft has also attached to it the lever 0 having the cam-rollero Which rests in contact with the face of the cam indicated at 0 0 indicating a spring which acts to keep the cam-roller in contact with the cam-face. It will readily be seen that as the diamond-folded blank is fed forward by the plates K K its .front end will be forced between the widely-opened jaw O and the face of the rollerO and that as soon as the cam-roller 0 has passed the point of the cam O the jaw 0 will be rapidly closed down against the roll 0, clasping thefront of the blank toit and feeding it forward between the rolls 0 and 0 the jaw 0 being again raised by the action of the cam after it has brought the paper into the grip of the said rolls, so that the projecting end of the blank will be freed from the jaw and enabled to pass between the rolls P and P. These rolls serve both the purpose of feed-rolls and of pasting-rolls to apply proper lines of paste to the diamond fold, the paste being applied by the upper roller P, which in turn receives its paste through the intermediate roller P from a paste-roller P working in a pastepan P After passing through the pasterolls the blanks are fed forward over a supporting-table P to the creasing-rolls Q Q, which and their connections are best indicated in Figs. 8, 24, 25, 26-, 27, and 28. The roller Q has connected with one part of its face the transversely-grooved creasing-bar indicated at Q, (see Figs. 2a and 25,) and it has also formed in its face the transverse opening indicated at Q the roll having secured to it at each end plates Q through which are formed bearings q for a shaft Q having secured to its ends lever-arms Q carrying cam-rolls g", which rest in contact with stationary cams g g a spring Q serving to hold the cam-rolls in contact with the cam. Also secured to the shaft Q and projecting outward through the opening Q is the pinching-jaw Q which, in accordance with the conformation of the cam, is during a portion of the revolution of the roll turned backward, asindicated in Figs. 27 and 28, and during other portions of the movement ofthe roll pressedforward by the action of the spring Q so that it would naturally take the position indicated in Fig. 25. Passing now to the upper creasing-roller Q, it will be observed that the said roll has a portion of its surface 1 cut away, as indicated at Q", and a creasing- IIO blade q", projecting from one end of this recessed portion and in such position as to act with the creasing-groove Q of the roller Q. The roller Q has also another recessed portion, (indicated at C2 and at the front end of this recess a rectangular cavity, (indicated at Q,) in which is situated the creasing-blade Q from the end of which projects the rods Q the blade and attached rods being pressed outward by springs Q and the ends of the rods lying in contact with the stationary annular cams, (indicated at Q The end of the creasing-blade Q is so placed as to register with the space between the clampingfinger Q and the wall of the cavity Q when the clamping-blade Q is opened, the cam Q being of such form as to permit the projection of the blade Q as it comes into registry with this cavity.

The operation of the creasing-rolls is clearly indicated in Figs. 27 and 28. The front end of the diamond fold is first creased by the action of the creasing-blade and the groove g as shown in Fig. 27, and the further revolution of the creasing-rolls creases the blank by the conjoint action of the blades Q and creasing-finger Q as indicated in Fig. 28, the result of the action being the delivery of the blank in the condition indicated in Fig. 30.

On leaving the creasing-rolls the creased blanks pass over the guiding-table, (indicated at B and between the final folding-rolls, (indicated at R R'.) The rolls engage the blank, as indicated in Fig. 29, and the tucking-blade S comes down before the front flap is folded backward by the action of the rolls R R and takes the rear flap beneath it, as is indicated in the same figure. The roller R is supported on a shaft r, which has its bearings in the studs R and which serves also as a pivotal support for the downwardly-extending housing R and the upwardly-extending arms R the housing R supporting the shaft of the roller R and being angularly adjustable and secured in any desired position by the action of a clamping-screw extending through its slot r into the standard R The upwardly-extending arms R support a rock-shaft,to which is connected the arm S, carrying the tuckingblade S and the lever-arm S which by means of a connecting-rod S is coupled to the end of a lever S secured on a rock-shaft S from which projects another lever-arm S having a cam-roller at its end which rests in contact with the cam S on the shaft 19, S indicating a spring which holds the cam-roller in contact with the cam. The adjustability of the lower roller R and of the rock-shaft supported by the arms R enables the angular direction of the movement of the blade S to be nicely adjusted, while always maintaining its proper relationship to the rollers R and R.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a paper-bag machine, the combination with the feed-rolls I I and I 1 of the former came-7t) extension-knife D and the knife I, situated between the said rolls, the striker F operating in connection with said knives to sever a blank from the tube and a reciprocating guide G operating to push down and guide the end of the tube between rolls 1 I and to be retracted to give free entrance to the end of the tube beneath it.

2. In a paper-bag machine, a bottom-distending device consisting of a pair of plates, as K K, revolving around parallel axes and adapted to receive between them the portion of a tucked bag-blank to be folded into the bag-bottom, in combination with fingers, as Z Z, arranged to enter the tuck of the blank and clamp the corner edges against said plates, wing-folders, as M M, pivoted at the sides of the plates and acting to fold down against them the distended end of the tube, and means for successively actuating the fingers and folders as the plates move toward a position in which they are parallel and for retracting said devices as the plates move away from said parallel position.

3. In a paper-bag machine a bottom-distending device consisting of a pairof plates, as K K, revolving around parallel axes and movable in the plane of their faces in combination with springs acting to move and hold the plates in extended position but permit them to move inward when their edges are pressed together, fingers, as Z Z, pivoted on and sharing the movements of the plates, wing-folders, as M, M, also pivoted on and sharing the movements of the plates and means for actuating the fingers and folders to engage and fold the end of a tucked bagblank as the plates move to a parallel position and to disengage said folded blank as the plates move from said position.

4. In a paper-bag machine a pair of revolving rolls, as J J, recessed at J in combination with a pair of plates K K, one rcvolving with each roll and each movable in the plane of its face, resilient means acting to thrust the plates outwardwhile permitting them to move inward when their edges are pressed together, fingers, as l l, and folders, 1

as M, M, pivoted to each plate and cams for operating the fingers and folders as the rolls revolve.

5. In a paper-bag machine a pair of revolving rolls, as J J, recessed on opposite sides as J J in combination with two pairs of plates K K, one of each pair revolving with each roll and each movable in and out on its supports, springs acting to hold the plates outward and which permit the plates to move in when the edges of a pair are pressed together, fingers, as Z l, and folders, as M, M, pivoted on each plate K, and cams operating the fingers and folders as specified.

6. In a paper-bag machine a pair of revolving rolls, as J J, recessed at J in combination with a pair of plates K K, one revolving with each roll and each movable in the plane of its face, resilient means acting eaacre to thrust the plates outward while permitting them to move inward when their edges.

are pressed together, fingers, as Z Z, and folders, as M, M, pivoted to each plate, and stationary cams, as N, N, N, concentric with the rollers J J for operating the fingers and folder as the rolls revolve.

7. In a paper-bag machine the combination with means for feeding a blank forward, as rolls J J, of an engaging and feeding device consisting of a roller 0, a jaw O pivoted in said roller, means for actuating said jaw O as the roller revolves whereby it is turned outward to release one blank and to receive another and inward to engage and draw forward each blank, and two rollers O 0 acting against the outer ends of roll 0 to engage the blanks and give clearance to jaw 0 8. In apaper-bag machine the combination with the revolving distending plates K K,

9. In a paper-bag machine,the combination a with a device for transversely creasing the diamond fold, of the adjustable arm R R the folding-rolls R, R, and the reciprocating holder-plate S, all pivoted to said arm R R LOUIS P. EISENBEIS. Witnesses:

W. M. EDWARDS, E. R. MITCHELL. 

